Improved lubricator for loose pullets



To all whom t't may concern the supply-chamber and rinata' gaat @wat @imita Letters Patent No. 95,912, :lated October 19, 1869.

IMPROYED LUBRICATOR FOR LOOSE PULLEYS.

' Mah- The Schedule referred to in these Letters Patent and making part of the same.

Be it known that I, CHARLES A. KING, of Springeld, Hampden county, State of Massachusetts, have invented a new and useful improved Oiler for Loose Pulleys; and I do hereby declare that the following is full and clear description thereof, reference being had to the accompanying. drawings, and to the letters of reference marked thereon.

In the drawings- Figure 1 is a side view of a pulley with my improvements, showing the interior arrangements of the same;

Figure 2 is a cross sectional view; and

Figure 3, a perspective view in detail.

The principle involved in this invention is that the lubrication of the loose pulley is accomplished by means of the centrifugal force obtained by the quick revolution of said pulley, this centrifugal force operating directly upon the valve communicating between the lubricator, opening the valve when the pulley is in quick motion. The valve is closed again by means of a spring lor other suitable power, when the pulley has ceased to revolve, or the motion has decreased in rapidity so much that the centrifugal force is not sutcient to overcome this power continually bearing against the valve and tending to shut it.

- A is the supply-chamber, formed in the shape of a hollow ring, and slid over the hubof the pulley, resting against the spokes, and fastened to the hub by means of the lubricating tube B, which is screwed through the rear projecting portion of the chamber at C. The end of this tube being bevelled and fitting into a corresponding socket cut through the hub at this point, oil is delivered upon the shaft I) through tliis`tube.

The communicating duct between the supply-chamber A and the lubricatorB consists of a small passa-ge, E, out through the hack plate of the chamber, and leading into the tube itself, or space above it, as the Tease maybe.

The valve consists of a piece, F, hinged to the back plate of the chamber at G, and having at its swinging end a block, H, which fits closely to the sidev of the chamber over the hole E. A spring, I, presses against the piece F and keeps it'against a pin, J which limits its play toward the shaft.

An adjustable screw, K, is set through the perimeter of the chamber, and regulates the play of the valve away from the centre.

A hole, L, is cut through' the block -H in the portion nearer the centre, and this hole comes opposite the hole E, communicating with thelubricator when the valve is pressed out against the screw K. But when the valve is at rest, as shown in iigs. l and 2, the holes L and E do not communicate.

By setting the screw K in or out, the h oles may be made to communicate more or less, so as tok regulate the feed of the oil to the lubricator.

Fig. 1 represents the valve as thrown out against the screw K, the pulley beingin rapid motion.

The passage of the oil from -the chamber to the tube is much facilitated by the centrifugal force which compels its passage through the communicating ducts. This 4force also prevents the oil from feeding to the shaft to any extent while the pulley is 'in quick motion, and the passage free between the chamber and tube. But when the pulley is moving slowly, the tube is left nearly full of oil after the` valve has closed, amb this supply is constantly in direct contact with the shaft, oiling itafter use, and remaining next to it when at rest.

A hole, O, is made through the front plate of the chamber for the purpose 'of filling it, and is stopped with a screw-cap.

The advantage of this invention is, that the pulley is always kept perfectly supplied with oil at a small expense of time and cost.

As various alterations may be made in my improvements without affecting `the principle involved, I do not confine myself to the exact construction herein shown of the parts composing the device g. but

What I claim asnew, and desire to secure by Letters Patent, is-

1. A valve for piilley-lubricators, operated by the centrifugal force obtained front the revolution` of the pulley, said valve opening and shutting ak passage communicating with the pulley-bearing.

2. The combination of the supply-chamber A, oiling tube B, valve F, and spring I, the parts being constructed and arranged substantially as herein set forth.

3. The independent annular oil-chamber A, constructed in the manner and for the .purpose set forth. Witnesses: .V C. 'A. KING.

EDWARD H. HYDE, J. B. GARDINER. 

